No one is in “everything” but this guy was in “lots of things” (246 IMDb credits).

https://www.imdb.com/name/nm0641729/

What’s your favorite thing that you’ve seen him in?

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTZxkqNDSj1JkkbatbSY84MyG98R2ma-vXrslOJSfIQQw&s=10

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRm4ILlCG4uMfg9VZ3_KUY-WCKKNhFed-LNofVRd2uROg&s=10

My favorite would of course also be his all time favorite

https://www.sitcomsonline.com/boards/attachment.php?attachmentid=320237&d=1745512543

I'd have to look at all his credits but I remember he was in several Maude episodes.

Probably when he was Sam Petrie on The Dick van Dyke Show. He had a good role as an elderly counterfeiter on Barney Miller. And he was opposing counsel to Oliver Wendell Douglas on Green Acres.

He looked similar to Alfred Hitchcock.

https://www.seniorforums.com/data/attachments/133/133364-c36af8d74950fea2efe0dbd1a68691f8.jpg

He was memorable in two episodes of Please Don't Eat the Daisies.

He played Carol's father in The Brady Bunch pilot episode. His character was never seen again.

https://scontent-atl3-2.xx.fbcdn.net/v/t39.30808-6/494192433_1230546475742450_772490806037555080_n.jpg?_nc_cat=104&ccb=1-7&_nc_sid=127cfc&_nc_ohc=CGg39QcY2rUQ7kNvwEBu_3Q&_nc_oc=AdkhlbEJDU69ftf4r9jJ09GYb0QRY2TY2DVtDOKl5iNZjIcibtKvHxlu4o3d2PnqiRds-5-CwqluKGDwd50sYjWB&_nc_zt=23&_nc_ht=scontent-atl3-2.xx&_nc_gid=HJHFW7Espp4SgW1MNgXyjw&oh=00_AfJ1aj5Xsd9qVyq2DQRQ9GwuUaryL82r0fuMMIHUBEpXxA&oe=68304B89